Current Electricity
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is electric current? | The movement of charge (electrons) through a conductor in a controlled way
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| What is needed to make electrons flow? | Electrical energy
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| What is needed for electrical energy? | A battery or generator which will cause electrons to move
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| How is electric current measured? | In amperes
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| One ampere is equivalent to? | One Coulomb of charge per second past a measuring point
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| How is electric current measured? | With an Ammeter
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| One ammeter in electrons? | 6.25 x 10^18 electrons/sec
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| One Coulomb in electrons? | 6.25 x 10^18 electrons
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| How do you use an Ammeter? | Must be hooked up in circuit so electrons flow through it (connected in series)
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| Electrical quantity symbol for a current? | I
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| Measurement symbol for Ampere? | A
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| Purpose of circuit breakers and fuses? | To prevent fires
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| How do circuit breakers and fuses work? | They are connected in a serie
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| What happens if too much current flows through wires? | The breaker/fuse breaks, creating open circuit (stops electricity)
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| What do you do when the circuit malfunctions? | Use ammeter to check current
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| How does the body use electrical impulses? | Brain controls body/muscles by using electrical impulses
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| What happens when the body is exposed to 0.001A? | Tingle
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| What happens when the body is exposed to 0.05-0.15A? | Contraction/convulsion and "let-go" threshold (cannot release object electrocuting you)
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| What happens when the body is exposed to 1-4.3A? | Heart stops
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| How much electricity is in a wall outlet? | 15A
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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